Thermostatic switch



B. M. FINE.

THERMOSTATIC SWITCH.

APPLICATION FILED-DECIR, 1919.

Patented Feb. 21, 1922.

W JIII g WWW V that. type of S'n'itPilQS in whi smtch is iii-muted nniounnnra l rspplicatios filed Becember ieciiicatinn, refcronvv being hsd i t e acrninpanyirg drawings. farming a. ther This invrntion rcintcs to in h vim-iris i by rhangres in temperature. its nhjert is provide a, compact and inexpensive stri nr whirh efiicient in operation. Another 0 I V is provide R1 dsvice of this vhnrs. car which i 'rments U1 a s constructed and arraingsci as in nsr as a part ther of an ordinary of cnmmarciai form. Another,

Vida simple and 'ezzsi v nnrnrpnh.

rangemsrnff0 adjusting 0r mined temperatures.

These and other ohjeci" 0' will appear in the foiiowing' i 1 which I'wiil describe rise invsn ion ihn nnvei featurss or which will he sci; forth pended claims.

Rzierring: tn ihe drawings:

Figure 1, is a central srtiuns-i niswiion 01 thermos'L-aiic switch whir'h is maria zn'mrih in 10 and embodies this invsntion.

Figure 2 is a sectional phin view of hs smile Sta /ice, the section being when m. iild hm 2-42 0?? Figure 1.

a frzwz'nen'mr scriin sting another 0p:- hs parts with the with cinssii. Like characters of refs-m ce qorr sponding parts in @11 the figures drawings.

10 designnies a cylindrical rnp-hks main iic (rising flanged at ihe np in; cover 12 whirh supports all the oth hi the (Irvine is secured t bchs A cup shaped iUGiiC-WS lhas a flange 1 which is soldered or brazed whivh in iurn is sohiereri or Y hon nm unilerside (if the cover. Thai, rnrri and 01 "the expansihle lnn'miiic hniinws iesirrnaied an; 16,

IS ain: sircular plum fmm rmis 91 "Wt/8m r" iv f ya. i rip 111M} 111 .nrC

are cxternzii threaded for the guide rods 2i. 1hr ends pf wh bushings him! againstwinprv nn s1). mg s "iii. Th0 nih r nmis 0i ihssn springs pr sslhvwhiti-1H)(hm'm\':ii

is an rim-in: swih-n Wilii'i'l rnzu' ni mi}; 0f the vii-known wnnnirrini iwi'n l is sizrnrmi in th s row! lii hv hrmncvi H. 'Zhn gnarrirnhir swiirh shuwn, has :1 t .vr rsrplunger the ends of whivh are ir. mind by 2&2- 32;, whirh has n inst mniion K'Uli" nrrt )i) with :1 swifrh urn: 34 :uhmiwi in hi NH; .1hythcpinngsrininundnlii oi vuninrt with wrzn nxi wnhzwis 3%. 3G with \rhiah. rnndnrinrs 3? and 38 are connected The QIHi I32- ni ihc pinngcr rests mm in rinse girnxiniity in the plane iii in \vinvh iii 15 prosswi hy :1 spring 53'? in :1 r cup in threaded inin Therein! part w: he

M row 11.

'i he operation of this apparatus is us ini- V k ih-g pmt of \hr, ('HSIIILZ 1U nnigmr UT h chr a'xpunsihic inrlzliiiu hr iuws is ilk- .1 iinid Wilh'h is sensitive to huinmnin e changes. .lH'il Sfnr example, as sniiihur i, Whirh has :1 high weihrieniof 'ihn springs 26 i'm'rv tin, iin\\'narnrrii and its nmvemsni in ii iiun is iiinit-z-rl h iho cnnmrtnf 1' (M15 oi 'ilhn SilhiS 22 wiih ihe \"Chi-n in his pus-i ion the sr." 'h ircu w mow: under he infiueru-e 1:; Winnie the sivirrh arm 33% in i sn'mi iiirnctiun. In ihe pnrtivninr n1" nrsni shown. the switch arm is nchni upr n iiw swiivh when ihn parts are gmsnmns in \vhirh ihuv are shown nrv 'ihn inrrmsr in tmnpernturc will vanish 111 0 pressure on (he rinsed and m" rhc 1n summer with the cover 1 i SK'HPH 11ml mltoiul no lllllllflllfiizb oihel Ii por ml 'rho upponilml claim? osl'ullo SVJ U'lI tinny-i ng nsihiv metallulwllmii n l lll upQH and with 'ho (own a so i 2i (1050i 01ml will outsi lo o. vonimtl;

dialling h= sihlo n'inizillio hello oxpan;-il le .mol the contact mil 2. 1' ll covet, an oxpunisiblo motullic lfil i and an open end with its open and mixed. to the :mmor Zl cos suirio'unih in? bus smcoil from l 1o expzuisuhle moi-"illocl 5 l chamber outside u c inflows; a plat-J to the olosocl and of allows, con'r oi; n

mpansiolo mvit" Izw-bzillio hollows hu own and with its ope {L (,ZZRSlIlgI sin-row,

isihlo mots. L heronirfi enil and z. lined lo closed l 1.4 end 2 covey, a casing; sin-round but spzxoeil from. the oxpansiblo metallic allows forn'zlr z a, dosed chamhor outside oi the wagon iblo metallic bellows, a plate. on lho closed (mil "ho oxpansihle meoillio bellows, sluih oom'niig .2 plate to the lo motallic bellows and winged lo plate For fiC fllzll l'f'l l vice.

ring: tho plzile to the 0.;- lntllows and 2:. mood to niovenxjn if )f. guiilo llHlS pro- 1o pluio l :Iho oovm', springs "211i 1'0 and arranged to (-loswl onil of tho 0X- away from tho ,ovi-ro mounted on by the mowment the cont-axial mulciostnfio switch ool'npi'ising' 2L lo illliillli) hollows havingan open end with its open llll; c casing surroimclliozn the XPLIIlSlblG meljallio o. chamber outside )oliows, a plate oihlo metallic ol: the on the,

' arranged to lllB rods p le C(H'Gl', (3X- for said b surround- U against said msh the plate and 1 )ansible metallic away f1 o the oo a oonaaot makovico mounted n the cover Within the and means conl-he plate for ,5" device.

comprising a o bellows having no and and with its open to the ca surroundoacecl from Xoansiblo metallic closed chamber outside no n' oi nlio J l'IJWS, a plate .53 close-1 o he e-Xpansible ows, a switch mounted on the cover W1 'n' ilio eziransible metallic bellows comprising i for actuating said 3'; a, and msilioni; means on the cover for member in one dire-cn fol'l c osed end of tho {ll SZJLl l to being arranged. to move said member mo opposite direction.

.a olosoo log acefi am fshe expansiblo metallic hell :w. LiOSP/Ll chamber outslde of the expnnsible metallic bellows." a plat-e on lhe closed end of the enpensible metallic bellows, studs securing the plate to the enpansible metallic bellows and arranged to limit the movement thei'eef, guide rails gr jecting from the pie-he into the cover, u swilch meunted on the cover wiahin the enpunsible metallic bellows comprising llil actuating member for actuating suicl switch, and adjustable resilient means on the cover for moving the actuating member in one direaction, said plate being arranged is move said member in the opposite direction.

9. A thermostatic switch comprising u cover, an expensible metallic hellews having a closed end and an open encl with its open end affixed to the cover, a. casing surrounding but spaced from the expansible meiellie bellows forming a closed chamber outside of the expansible metallic bellews, u plate on the closed end of the expensible metallic bellows, stucls securing the plaids '50 lhe en nunsblg metallic bellows and arranged in imie the niovemenib e 601", guide lOllS pmfrom the plate into the cover i'nzil y threaded guic e bushings for guide rods in the cover, ing the guide rails abutting against bushings and ai'i'angecl to push the'plute and the closed end 0;? the e; unsihle metallic bellows away she cover, a swileh mounted on the cover Within lhe expensihle metallic bellows comprising 2, member 50F actuating said swiich, an adjusting member threaded through the cover anal spring et-Ween said adjusting meznhereml the swifich sctuu'eing member. arranges move the uctuuting member in one lineal. J said. plate being arranged 0 move said seizusting memhei' in the apposite directinn against the ec'biou sf said. spring.

witness wherein" l have hereunto set my hand 15 a -37 at? December, 1919.

BERNARD M.

springs surround 

